CVE-2022-46144

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-12-13 · updated 2026-06-17
Weakness: CWE-664

Description

A vulnerability has been identified in SCALANCE SC622-2C (6GK5622-2GS00-2AC2) (All versions < V2.3), SCALANCE SC622-2C (6GK5622-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC626-2C (6GK5626-2GS00-2AC2) (All versions < V2.3), SCALANCE SC626-2C (6GK5626-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC632-2C (6GK5632-2GS00-2AC2) (All versions < V2.3), SCALANCE SC632-2C (6GK5632-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC636-2C (6GK5636-2GS00-2AC2) (All versions < V2.3), SCALANCE SC636-2C (6GK5636-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC642-2C (6GK5642-2GS00-2AC2) (All versions < V2.3), SCALANCE SC642-2C (6GK5642-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE SC646-2C (6GK5646-2GS00-2AC2) (All versions < V2.3), SCALANCE SC646-2C (6GK5646-2GS00-2AC2) (All versions >= V2.3 < V3.0), SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) (All versions < V2.0.0), SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) (All versions < V2.0.0), SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) (All versions < V2.0.0), SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) (All versions < V2.0.0), SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) (All versions < V2.0.0), SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) (All versions < V2.0.0), SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) (All versions < V2.0.0), SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) (All versions < V2.0.0), SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) (All versions < V2.0.0). Affected devices do not properly process CLI commands after a user forcefully quitted the SSH connection. This could allow an authenticated attacker to make the CLI via SSH or serial interface irresponsive.

Affected products

Siemens 6Gk5622-2Gs00-2Ac2 Firmware: from 2.3 before 3.0; before 2.3 — fixed in 2.3, 3.0
Siemens 6Gk5626-2Gs00-2Ac2 Firmware: from 2.3 before 3.0; before 2.3 — fixed in 2.3, 3.0
Siemens 6Gk5632-2Gs00-2Ac2 Firmware: from 2.3 before 3.0; before 2.3 — fixed in 2.3, 3.0
Siemens 6Gk5636-2Gs00-2Ac2 Firmware: from 2.3 before 3.0; before 2.3 — fixed in 2.3, 3.0
Siemens 6Gk5642-2Gs00-2Ac2 Firmware: from 2.3 before 3.0; before 2.3 — fixed in 2.3, 3.0
Siemens 6Gk5646-2Gs00-2Ac2 Firmware: from 2.3 before 3.0; before 2.3 — fixed in 2.3, 3.0

How to fix

Upgrade to a fixed version: Siemens 6Gk5622-2Gs00-2Ac2 Firmware 2.3, 3.0; Siemens 6Gk5626-2Gs00-2Ac2 Firmware 2.3, 3.0; Siemens 6Gk5632-2Gs00-2Ac2 Firmware 2.3, 3.0; Siemens 6Gk5636-2Gs00-2Ac2 Firmware 2.3, 3.0; Siemens 6Gk5642-2Gs00-2Ac2 Firmware 2.3, 3.0; Siemens 6Gk5646-2Gs00-2Ac2 Firmware 2.3, 3.0. Check the vendor advisory for mitigations.

References

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